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Copy pathfilesystem.cc
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66 lines (52 loc) · 1.44 KB
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// Copyright 2018 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "cc/file/filesystem.h"
#include <sys/stat.h>
#include <cerrno>
#include "cc/file/path.h"
namespace minigo {
namespace file {
namespace {
bool MaybeCreateDir(const std::string& path) {
int ret = mkdir(path.c_str(), S_IRWXU | S_IRWXG | S_IRWXO);
if (ret == 0) {
return true;
}
if (errno != EEXIST) {
return false;
}
if (path == "/") {
return true;
}
struct stat st;
ret = stat(path.c_str(), &st);
if (ret != 0) {
return false;
}
return S_ISDIR(st.st_mode);
}
} // namespace
bool RecursivelyCreateDir(absl::string_view path) {
std::string path_str(path);
if (MaybeCreateDir(path_str)) {
return true;
}
if (!RecursivelyCreateDir(Dirname(path))) {
return false;
}
// Creates the directory knowing the parent already exists.
return MaybeCreateDir(path_str);
}
} // namespace file
} // namespace minigo